This is just the pulley on the bracket and not the entire assembly (see below for the entire assembly).
This pulley is only used on those models that are equipped an auxiliary A/C system (second compressor).
It DOES NOT include the mounting bracket.
Pulley is smooth, 80mm in diameter and 26mm wide.
Detailed Description
Sprinter II 2007-2018 3.0L V6 diesel
Sprinter III 2019-2022 3.0L V6
This component is ONLY used on those vehicles equipped with roof air, which have two A/C compressors. If you have standard A/C, you do not have this part on your engine.